Still feeling a tad shell-shocked but our SIR visa has been approved!!!!!!! :D
Our agent said it'd be about 2-3 months from sending the PC's & Meds (which were sent on 26 January 2007) and I got the call to say it was approved this morning - I was in a meeting and saw the number on my phone and thought that it was going to be some sort of problem not a big "yes". (Had to wait for my colleague to leave before I could call back!)
I've read somewhere recently (apologies if I'm repeating/nicking someone else's thread) that you can read up on timescales at www.austimeline.com - our dates are now up in case it helps anyone else.
So, a big "wahey!" all round and now the real panic sets in......